Entomological Apparatus

1. 'Vortis' insect suction sampler

A lightweight portable suction sampling system designed to extract insects from herbage or debris with many distinct advantages over previously accepted methods. The insects collected are immediately visible. No nets, bags or filters. Collecting vessel may be rapidly removed or replaced. A wide range in size and shape of collecting vessel may be used. Insects collected are safely deposited and may be returned to their habitat if required. Light and fully portable system easily operated by one person. No losses from the catch when transferring collected material.

Vortis sampler
2. Univac portable suction sampler

A self-powered suction sampler, designed to extract samples of insect populations from crops and grasslands. A knapsack shoulder-mounted, motorised vacuum unit fitted with the well-proven JLO Type 35 two-stroke engine. At a modest 3,500 rpm the air speed at the 6 cm diameter intake nozzle fitted to the flexible collecting tube is approximately 300 kph and a static vacuum in excess of 180 mm Hg can be obtained. Total weight 12 kg.

Univac sampler
3. Portable transistorised colony counters Type CC1 and CC5

The colony counters are designed to assist with the rapid counting of large numbers of insects immersed in a conductive media, for bacterial populations, spore concentrations, nematodes and a wide range of small particles. Single and multi- counter instruments for operation from a 27 volt battery source or mains supply. The CC5 equipped with sensitive keyboard can be switched to operate on all 5 channels independently or 4 channels and a totaliser. Voltages: 27 volts d.c. (portable instruments); 230-250 volts 50 Hz; 110-115 volts 60 Hz.

Colony counter
4. Electronic 16 channel counter unit

The 'Micro-diff' electronic counter is designed to accommodate up to 16 independent memory and count channels with a switched differential set at 100/1000. The unit can be reprogrammed to accept differential counts against the input of an absolute figure. The system is convenient and simple to operate and is ergonomically styled for long-term operation.

16 channel counter
5. Monks Wood light trap

Ref: M W Service Bull. Wld. Hlth. Org. 1970 43:635- 641; Developed to sample medically important insects such as mosquitoes, midges, sand-flies and black-flies. It may also be used to catch agricultural pests and a variety of other small insects. The trap operates on a 12 volt d.c. battery through a transistor ballast providing warm white, daylight or UV light. The trap may be operated manually or automatically through a photoelectric light cell.

M-W. trap
6. Rothamsted light trap

Ref: Proc. E Ent. Soc. London, Vol. 23, pp 80-85, 1948 C B Williams, Phil. Trans. R. Soc. London, No 7B, Vol. 244, pp 331-378, Nov 1961. An electric light trap for the sampling of nocturnal insect populations. Time switch control to permit selected period automatic sampling. Samples are retained in a quickly detachable killing bottle. The trap is available with or without stand.

Rothamsted trap
7. 6 & 12 bank, Tullgren funnels

Ref: P W Murphy, Progress in Soil Zoology, pp 75-110, Butterworths, J Brady, J Appl Ecol 6, 391-402, December 1969. An extraction method for soil animals. The creation of a temperature gradient of approximately 14C in a litter or soil sample to stimulate downward movement of soil arthropods into a collecting vessel. Voltages: 230-250 volts 50 Hz, 110-115 volts 60 Hz

Tulgren funnels
8. Johnson Taylor insect suction traps models VI - 9" & VI - 12"

Ref: Arm. Appl. Biol. Vol. 43 No. 1, pp 51-61 (1955) Ann. Appl. Biol. Vol. 38 No. 3, pp 582-591 (1951). The insect catch is related to volume of air sampled to give the aerial density of the insects independent of weather conditions or time of day. The catch is segregated at pre-set time intervals to show flight periodicity. Interval times 5 min - l hour. Alternative intervals available on request. Units are available without disc dropping mechanism and the sample is drawn down into a plastic vessel fitted with side overflow ports.

J&T suction trap
9. Fluid bed dryer 200S

Designed to permit continuous or timed drying of a wide range of materials. An air throughput of over 200 c.f.m. ensures good fluidisation and fast drying. The air is drawn through a large area washable filter at the inlet orifice where the flow is regulated by controls on the front panel. A process timer enables drying periods between 12 seconds to 12 hours to be set. Electronic temperature control provides an operational range from ambient to 100C.

Fluid-bed drier
10. Fluid bed dryer 350s

A portable self-contained laboratory fluid bed dryer, designed for small batch drying of materials where precise temperature and time control is important. A unique feature of this instrument is the low noise level produced by the constant speed induction motor driving a nine stage outflow turbine unit. Air throughput can be pre-set and maintained using the mechanical selection knob on the front panel whilst temperatures of ambient to 80 degrees centigrade are readily available from a high accuracy electronic controller and thermocouple sensing air temperature at the base of the sampling chamber. A wide range of materials can be processed including organic and inorganic compounds, pharmaceuticals, foods and fuels.

Fluid-bed drier
11. 'Cold light' viewer

An attractively styled, all purpose laboratory 'Cold Light' viewer suitable for a wide range of applications. The instrument has an opal glass screen area of 10" x 10" with standard magnification of 1 x 2. The alternative magnifier of 10 dioptas is available as an extra and overhead illuminated viewing is provided using two 6 watt 9" fluorescent tubes mounted within the lens frame. The viewer can be quickly adapted to accept a UV lamp housing for such work as criminology, medical diagnosis, chromatography, invisible marking, quality control, etc. A rear stand enables the operator to elevate the screen to 10.

Cold-light viewer
Return to top

Return to homepage

© Burkard Manufacturing Co. Ltd., 1 October, 2001